Section 1 (Engine Controls - System/Component Tests - 2.3L): Introduction

WARNING: This page is about a different car, the 1991 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

Prior to testing separate components or systems, it is recommended that all procedures listed in the BASIC TESTING article be performed. Since many computer controlled and monitored components will set a service code if they malfunction, check EEC-IV system and retrieve service codes. See Quick Test procedure in the appropriate TESTS W/CODES article in this section. If service codes are present see appropriate CIRCUIT TEST in the appropriate TESTS W/CODES article in this section.

NOTE: Testing individual components does not isolate shorts or opens. Perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) that has a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.

NOTE: For wiring diagrams not shown in testing procedures, see WIRING DIAGRAMS .